def test_terms():
k = EQ() + EQ() * Linear() + RQ(1) * RQ(2) + Delta()
yield eq, k.num_terms, 4
yield eq, str(k.term(0)), 'EQ()'
yield eq, str(k.term(1)), 'EQ() * Linear()'
yield eq, str(k.term(2)), 'RQ(1) * RQ(2)'
yield eq, str(k.term(3)), 'Delta()'
yield raises, IndexError, lambda: k.term(4)
yield raises, IndexError, lambda: EQ().term(1)
def test_terms():
k = EQ() + EQ() * Linear() + RQ(1) * RQ(2) + Delta()
assert k.num_terms == 4
assert str(k.term(0)) == 'EQ()'
assert str(k.term(1)) == 'EQ() * Linear()'
assert str(k.term(2)) == 'RQ(1) * RQ(2)'
assert str(k.term(3)) == 'Delta()'
with pytest.raises(IndexError):
k.term(4)
with pytest.raises(IndexError):
EQ().term(1)
